Combined cotter pin and washer



Nov. l0, l925 M. s. ANDERSON l OBINED COTTR PIN AND WASHER Fuga Aug'. .9. 1924 15 object is Patented Nov. 10, 1925.

UNITED STATES PATENT OFFICE.

MILES S. ANDERSON, O'F INDIANAPOLIS, INDIANA, ASSIGNOR TO LINK-BELT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION F ILLINOIS.

COMBINED COTTER PIN AND WASHER.

Application tiled August 9, 1924. Serial No. 731,233.

To all 'ec/1.0m. it may concern.'

Be it known that I, MILES S. ANDERSON, a citizen of the UnitedStates, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a certain new and useful Improvement in a Combined Cotter Pin and Washer, of which the following is a specification.

My invention relates to a combined cotter pin and washer. One purpose is to provide an eiiicient and durable means for preventthe axial Withdrawal of a securing pin which joins adjacent rotating elements, for example, adjacent links in a chain. Another the provision, association with such securing means, of a relatively extended bearing surface, which distributes over a broad area the wear of the adjacent rotating portions against the cotter element.

Other objects will appear from time to time in the course of the specification and claims. I illustrate my invention more or less diagrammatically in the accompanying drawings, wherein Figure 1 is a plan view of chain links with which my invention is used;

Figure 2 is a side elevation of the links shown in Figure 1;

Figure 3 is a section on an enlarged scale along the line 3 3 of Figure l;

Figure 4 is an enlarged view of an end of the chain pin showing the combined cotter pin and washer in position.

Like parts are illustrated by like characters throughout the specification and drawings.

A, A are chain links, the ends of which are perforated to permit the passage therethrough of the securing and bearing pin A1,

one end of which is enlarged as at A2. The opposite end of the pin is milled olf as at B, B, the milled off portion being perforated as at B1.

C is the washer body herein shown as gen- 5 erally seml-circular or arcuate and provided with the central pin portion C1 and the projecting arms C2. In use the cotter pin member C1 is inserted into the aperture B1, as shown in Figure 3, and the arms C2 are then hammered or bent into the position shown in dotted lines in Figure 3, thus' securely locking the cotter pin against axial movement. The perforation through which the cotter pin passes is so positioned that the liattened surface C3 of the washer is opposed t0 the adjacent .fiat surface C4 of the link. The extended washer surface is sufficient to prevent undue wear or battering of the cotter pin, and a durable and efficient and yet easily removed cotter is thus provided.

It will be realized that the combined cotter pin and washer herein shown may be used with a diversity of different parts and its use herein with chain linksis intended as illustrative 'and' not as a limitation. lVhile I have shown an operative device, it will be realized that many changes may be made in the size, number, shape, proportion and relation of parts without departing from the spirit of my invention.

I claim:

1. A unit washer and cotter pin comprising a substantially arcuate washer body' having a plane bearing surface on one side, a pin projecting inwardly from the center of said Washer body, arms projecting from the ends of said washer body said last mentioned arms being substantially longer than said firstA mentioned pin.

2. A unit washer and cotter pin comprising a substantially arcuate Washer body having a plane bearing surface on one side, a pin projecting inwardly from the center of said Washer body, arms projecting from the ends of said washer body said last mentioned arms being substantially longer than said,` first mentioned pin, said arms being adapted to be bent inwardly toward each other and being of such length as to overlie thel end of said pin when so bent.

3. A unit washer and cotter pin comprising an arcuate washer body, a pin element projecting from said body, said body terminating in a plurality of arms adapted to be bent about the 'element through which the cotter pin passes, said arms being substantially longer than said pin.

4. A unit washer and cotter pin com rising a washer body, a pin projecting rom saidbody, liexible, relatively non-resilient securing arms terminating the 'opposite ends of said Washer body and adapted to be bent inwardly toward the outer end of the pin, said arms being substantially longer than said pin. p

` 5. A unit washer and cotter pin comprising a washer body and a pin projecting arms bein adapted to be bent into final from said body, said body comprising in position a ter the application of the cotter part flexible but non-resilient arms, the dis-l PIII- V tance between said arms, prior to the appli- Slgned at Indianapolis, county of Marion, 5 cation of the cotter, being at all points equal and State Of Indlana, this 22nd day of July,

to or greater than the diameter of the mem- 1924 ber to which the Cotter is to be applied, said v MILES S. ANDERSON. 

